Flowmaster
Flowmaster 05-10 Mustang GT Outlaw SS Cat-Back Exhaust System
Flowmaster 05-10 Mustang GT Outlaw SS Cat-Back Exhaust System
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This Flowmaster® Outlaw® Cat-back exhaust system is designed for 2005-2010 Ford Mustang GT 4.6L, and GT500 with 5.4L engine and is perfect for the person looking for a deep aggressive sound level both inside and outside the car. This bolt-on emissions-legal system features 2.50-inch mandrel-bent stainless steel tubing leading into a pair of our race-proven Outlaw Series mufflers with large 3.00-inch outlets for maximum performance. The system uses the factory hanger locations for easy installation and is finished off with a pair of large 4.00-inch polished stainless steel tips embossed with the Flowmaster logo. This exhaust system fits both coupes and convertibles and is covered by our Lifetime Limited Warranty. Includes all necessary parts, hardware and easy to follow instructions for an installation you can do at home. Note: Fits coupes and convertibles.
- Mandrel-bent Stainless Steel Construction
- Deep Aggressive Interior/Exterior Sound
- Dyno Tuned For Maximum Performance
- Race-proven Outlaw Mufflers
- Lifetime Limited Warranty
- Flowmaster Quality
- Easy Installation
Vehicle Fitment
- 2005-2010 Ford Mustang
Please verify exact fitment for your trim and engine before ordering.
🚚 Vendor Direct Shipment: This item is not stocked in our warehouse and ships directly from the manufacturer. Please allow additional handling time before dispatch.
Manufacturer Part Number: 817515
Images are for illustrative purposes only. Actual product may vary.
⚠ WARNING (California Proposition 65): This product can expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
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Manufacturer's Warranty — Flowmaster
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Manufacturer's Warranty — Flowmaster
Flowmaster warranty is tiered by material and product line. Lifetime Limited Warranty — stainless steel mufflers (FlowFX series excepted), all stainless steel exhaust systems (FlowFX included), stainless steel pipes, air intake kits and oiled-type filters (cleaning kits excepted), and other stainless steel exhaust accessories (exhaust tips and racing products excepted); this runs for the life of the original vehicle the part was installed on. Three (3) years — aluminized steel mufflers, exhaust systems and pipes, all exhaust tips, other non-race exhaust accessories, and commercial-vehicle applications of aluminized or stainless products. Two (2) years — Delta Force dry air intake filter elements. One (1) year — FlowFX series mufflers, Elite Series headers, and electronic components such as Delta Boost modules. Catalytic converters sold under the Flowmaster brand are excluded from this warranty. Coverage runs from the date of original purchase, to the original purchaser only, and only while the part remains on the vehicle it was originally installed on. Header coverage does not extend to damage caused by exhaust insulating wrap and is void if the header was fitted to a new or rebuilt engine during the initial break-in period. Sound-absorbing material inside “straight-through” mufflers degrades over time; Flowmaster treats that as normal wear, not a material defect. Also excluded: interior and exterior sound levels, cosmetic issues such as coatings and material discoloration, installation on a racing vehicle, improper installation or installation contrary to Flowmaster instructions, alteration, misuse, repair, accident, collision, undercarriage road impact or debris, and willful or negligent acts. To claim, the original purchaser returns the product either to the original retailer or directly to Flowmaster — a Returned Material Authorization (RMA) number must be obtained from Flowmaster first if returning to them — with proof of purchase showing place, price, product and date. Flowmaster's remedy is exchange for the same part number or refund of the purchase price at its option; installation, labor, towing and shipping costs are not covered.
Warranty terms are set by the manufacturer and may change. Full details and claims are handled directly by Flowmaster. Contact us if you need help with a warranty claim.

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